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JPS5291358A - Direct heating cathode structure - Google Patents

Direct heating cathode structure

Info

Publication number
JPS5291358A
JPS5291358A JP749376A JP749376A JPS5291358A JP S5291358 A JPS5291358 A JP S5291358A JP 749376 A JP749376 A JP 749376A JP 749376 A JP749376 A JP 749376A JP S5291358 A JPS5291358 A JP S5291358A
Authority
JP
Japan
Prior art keywords
direct heating
cathode structure
heating cathode
substrate
alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP749376A
Other languages
Japanese (ja)
Other versions
JPS5922335B2 (en
Inventor
Akira Misumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP51007493A priority Critical patent/JPS5922335B2/en
Publication of JPS5291358A publication Critical patent/JPS5291358A/en
Publication of JPS5922335B2 publication Critical patent/JPS5922335B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To prevent deformation in a substrate, avoid changes in the operation point and oxide peeling off in electron guns by coating, on the surface of the substrate, metal powder mainly composed of Ni, W, Mo and coated with Ni, Co or alloy thereof.
COPYRIGHT: (C)1977,JPO&Japio
JP51007493A 1976-01-28 1976-01-28 Directly heated cathode structure Expired JPS5922335B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51007493A JPS5922335B2 (en) 1976-01-28 1976-01-28 Directly heated cathode structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51007493A JPS5922335B2 (en) 1976-01-28 1976-01-28 Directly heated cathode structure

Publications (2)

Publication Number Publication Date
JPS5291358A true JPS5291358A (en) 1977-08-01
JPS5922335B2 JPS5922335B2 (en) 1984-05-25

Family

ID=11667286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51007493A Expired JPS5922335B2 (en) 1976-01-28 1976-01-28 Directly heated cathode structure

Country Status (1)

Country Link
JP (1) JPS5922335B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615527A (en) * 1979-07-18 1981-02-14 Hitachi Ltd Directly heating type cathode and its manufacture
US5118984A (en) * 1990-03-07 1992-06-02 Mitsubishi Denki Kabushiki Kaisha Electron tube cathode
US6124666A (en) * 1996-11-29 2000-09-26 Mitsubishi Denki Kabushiki Kaisha Electron tube cathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615527A (en) * 1979-07-18 1981-02-14 Hitachi Ltd Directly heating type cathode and its manufacture
JPS6343862B2 (en) * 1979-07-18 1988-09-01 Hitachi Ltd
US5118984A (en) * 1990-03-07 1992-06-02 Mitsubishi Denki Kabushiki Kaisha Electron tube cathode
US6124666A (en) * 1996-11-29 2000-09-26 Mitsubishi Denki Kabushiki Kaisha Electron tube cathode

Also Published As

Publication number Publication date
JPS5922335B2 (en) 1984-05-25

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